package com.cn.auth.common;

import java.text.SimpleDateFormat;
import java.math.RoundingMode;
import java.sql.Timestamp;
import java.text.DateFormat;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.text.ParseException;
import java.text.ParsePosition;
import java.time.Instant;
import java.time.LocalDate;
import java.time.ZoneOffset;
import java.time.format.DateTimeFormatter;
import java.time.temporal.ChronoUnit;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.List;
import java.util.Locale;
import java.util.Random;


/**
 * DateUtil
 * @author Maochao-zhu
 *
 */
public class DateUtil {

    public static String pattern = "yyyy-MM-dd";
    public static SimpleDateFormat formatter = new SimpleDateFormat(pattern);
    public static SimpleDateFormat formatter2 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    public static DateTimeFormatter dateFormatter = DateTimeFormatter.ofPattern(pattern);

    public static void main(String[] args) {
    	System.out.println(nowDateSecond());
//    	System.out.println("==========2019-04-28 04:04:01===="+strToDateSecond("2019-04-28 04:04:01"));
	}
    
    
    //获取当前月的前十二个月
	public static List<String> getInitMonthMapWithZero(){
			List<String> list = new ArrayList<String>();
			Calendar c = Calendar.getInstance();
			for(int i = 0; i < 12; i ++){
				int k = c.get(Calendar.YEAR);
				int j = c.get(Calendar.MONTH) + 1 - i;
				String date = "";
				if(j >= 1){
					date = k + "-" + (j >= 10 ? "" : "0") + j;
				} else {
					int p = 11 - i;//剩余循环次数
					int m = c.get(Calendar.YEAR) - 1;
					int n = c.get(Calendar.MONTH) + 2 + p;
					date = m + "-" + (n >= 10 ? "" : "0") + n;
				}
				list.add(date);
			}
			return list;
	}    

    public static DateTimeFormatter getDateTimeFormatter() {
        return dateFormatter;
    }

    /**
     * 获取现在时间
     *
     * @return 返回时间类型 yyyy-MM-dd HH:mm:ss
     */
    public static Date getNowDate() {
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String dateString = formatter.format(new Date());
        ParsePosition pos = new ParsePosition(0);
        Date currentTime_2 = formatter.parse(dateString, pos);
        return currentTime_2;
    }

    /**
     * 获取现在时间
     *
     * @return返回短时间格式 yyyy-MM-dd
     */
    public static Date getNowDateShort() {
        String dateString = formatter.format(new Date());
        ParsePosition pos = new ParsePosition(0);
        Date currentTime_2 = formatter.parse(dateString, pos);
        return currentTime_2;
    }

    /**
     * 获取现在时间
     *
     * @return返回字符串格式 yyyy-MM-dd HH:mm:ss
     */
    public static String getStringDate() {
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String dateString = formatter.format(new Date());
        return dateString;
    }

    /**
     * 获取现在时间
     *
     * @return返回字符串格式 yyyyMMddHHmmss
     */
    public static String getStringAllDate() {
        SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMddHHmmssSSS");
        String dateString = formatter.format(new Date());
        return dateString;
    }

    /**
     * 获取现在时间
     *
     * @return 返回短时间字符串格式yyyy-MM-dd
     */
    public static String getStringDateShort() {
        String dateString = formatter.format(new Date());
        return dateString;
    }

    /**
     * 获取时间 小时:分;秒 HH:mm:ss
     *
     * @return
     */
    public static String getTimeShort() {
        SimpleDateFormat formatter = new SimpleDateFormat("HH:mm:ss");
        String dateString = formatter.format(new Date());
        return dateString;
    }

    /**
     * 将长时间格式字符串转换为时间 yyyy-MM-dd HH:mm:ss
     *
     * @param strDate
     * @return
     */
    public static Date strToDateLong(String strDate) {
    	if(StringUtil.isNotBlank(strDate))
    	{
    		SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    		ParsePosition pos = new ParsePosition(0);
    		Date strtodate = formatter.parse(strDate, pos);
    		return strtodate;
    	}
    	else
    	{
    		return null;
    	}
    }

    /**
     * 将长时间格式时间转换为字符串 yyyy-MM-dd HH:mm:ss
     *
     * @param dateDate
     * @return
     */
    public static String dateToStrLong(java.util.Date dateDate) {
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String dateString = formatter.format(dateDate);
        return dateString;
    }

    /**
     * 将短时间格式时间转换为字符串 yyyy-MM-dd
     *
     * @param dateDate
     * @param
     * @return
     */
    public static String dateToStr(java.util.Date dateDate) {
        String dateString = formatter.format(dateDate);
        return dateString;
    }

    public static String dateToStr(java.time.LocalDate dateDate) {
        String dateString = dateFormatter.format(dateDate);
        return dateString;
    }

    /**
     * 将短时间格式字符串转换为时间 yyyy-MM-dd
     *
     * @param strDate
     * @return
     */
    public static Date strToDate(String strDate) {
    	if(StringUtil.isNotBlank(strDate))
    	{
    		ParsePosition pos = new ParsePosition(0);
    		Date strtodate = formatter.parse(strDate, pos);
    		return strtodate;
    	}
    	else
    	{
    		return null;
    	}
    }

    /**
     * 将短时间格式字符串转换为时间 yyyy-MM-dd HH:mm:ss
     *
     * @param strDate
     * @return
     */
    public static Timestamp strToDateSql(String strDate) {
    	if(StringUtil.isNotBlank(strDate))
    	{
    		ParsePosition pos = new ParsePosition(0);
    		Date strtodate = formatter2.parse(strDate, pos);
    		return new Timestamp(strtodate.getTime());
    	}
    	else
    	{
    		return null;
    	}
    }

    /**
     * 时间字符串yyyy-MM-dd HH:mm:ss 类型转换为   秒 
     * @param strDate
     * @return
     */
    public static Long strToDateSecond(String strDate) {
    	if(StringUtil.isNotBlank(strDate))
    	{
    		ParsePosition pos = new ParsePosition(0);
    		Date strtodate = formatter2.parse(strDate, pos);
    		return strtodate.getTime()/1000;
    	}
    	else
    	{
    		return null;
    	}
    }

    /**
     * 时间字符串yyyy-MM-dd  类型转换为   秒 
     * @param strDate
     * @return
     */
    public static Long strNoMisToDateSecond(String strDate) {
    	if(StringUtil.isNotBlank(strDate))
    	{
    		ParsePosition pos = new ParsePosition(0);
    		Date strtodate = formatter.parse(strDate, pos);
    		return strtodate.getTime()/1000;
    	}
    	else
    	{
    		return null;
    	}
    }
   
    /**
     * 将秒转换为时间 yyyy-MM-dd HH:mm:ss
     * @param strDate
     * @return
     */
    public static String secondToDateStr(Long seconds) {
        if(seconds == null || seconds.equals("null")){  
	        return "";  
	    }  
    	return formatter2.format(new Date(Long.valueOf(seconds+"000")));  
    	
    }
    
    /**
     * 将秒转换为时间 yyyy-MM-dd HH:mm:ss
     * @param strDate
     * @return
     */
    public static String secondToDateStr(String seconds) {
        if(seconds == null || seconds.equals("null")){  
	        return "";  
	    }  
    	return formatter2.format(new Date(Long.valueOf(seconds+"000")));  
    	
    }
    
    /**
     * 将 毫秒 转换为时间 yyyy-MM-dd HH:mm:ss
     * @param seconds
     * @return
     */
    public static String milliSecondToDateStr(String milliSecond) {
    	if(milliSecond == null || milliSecond.equals("null")){  
    		return "";  
    	}  
    	return formatter2.format(new Date(Long.valueOf(milliSecond)));  
    	
    }

    /**
     * String类型的秒、转换为时间格式  yyyy-MM-dd HH:mm:ss
     * @param seconds
     * @return
     */
    public static String secondStrToDateStr(String seconds) {
    	if(seconds == null || seconds.equals("null")){  
    		return "";  
    	}  
    	return formatter2.format(new Date(Long.valueOf(seconds+"000")));  
    	
    }

    /**
     * 将秒 转换为时间 yyyy-MM-dd
     * @param strDate
     * @return
     */
    public static String secondToDateStrNoMis(Long seconds) {
    	if(seconds == null || seconds.equals("null")){  
    		return "";  
    	}  
    	return formatter.format(new Date(Long.valueOf(seconds+"000")));  
    }
    
    /**
     * 将String类型的 秒 转换为时间 yyyy-MM-dd
     * @param strDate
     * @return
     */
    public static String secondToDateStrNoMis(String seconds) {
    	if(seconds == null || seconds.equals("null")){  
    		return "";  
    	}  
    	return formatter.format(new Date(Long.valueOf(seconds+"000")));  
    }
    
  
  
    /**
     * 将现在时间转换为秒
     * @return
     */
    public static Long nowDateSecond() {
    	return new Date().getTime()/1000;
    	
    }
    
    
    /**
     * 得到现在时间
     *
     * @return
     */
    public static Date getNow() {
        Date currentTime = new Date();
        return currentTime;
    }

    /**
     * 提取一个月中的最后一天
     *
     * @param day
     * @return
     */
    public static Date getLastDate(long day) {
        Date date = new Date();
        long date_3_hm = date.getTime() - 3600000 * 34 * day;
        Date date_3_hm_date = new Date(date_3_hm);
        return date_3_hm_date;
    }

    /**
     * 得到现在时间
     *
     * @return 字符串 yyyyMMdd HHmmss
     */
    public static String getStringToday() {
        Date currentTime = new Date();
        SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMdd HHmmss");
        String dateString = formatter.format(currentTime);
        return dateString;
    }

    /**
     * 功能：<br/>
     *
     * @author Tony
     * @version 2016年12月16日 下午4:41:51 <br/>
     */
    public static String getTodayShort() {
        Date currentTime = new Date();
        SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMdd");
        String dateString = formatter.format(currentTime);
        return dateString;
    }

    /**
     * @param @param  value
     * @param @return
     * @return String
     * @throws
     * @Description: 输入一个整数类型的字符串, 然后转换成时分秒的形式输出
     * 例如：输入568
     * 返回结果为：00:09:28
     * 输入null或者“”
     * 返回结果为:00:00:00
     * @author Tony 鬼手卡卡
     * @date 2016-4-20
     */
    public static String getHHMMSS(String value) {
        String hour = "00";
        String minute = "00";
        String second = "00";
        if (value != null && !value.trim().equals("")) {
            int v_int = Integer.valueOf(value);
            hour = v_int / 3600 + "";//获得小时;
            minute = v_int % 3600 / 60 + "";//获得小时;
            second = v_int % 3600 % 60 + "";//获得小时;
        }
        return (hour.length() > 1 ? hour : "0" + hour) + ":" + (minute.length() > 1 ? minute : "0" + minute) + ":" + (second.length() > 1 ? second : "0" + second);
    }

    /**
     * 得到现在小时
     */
    public static String getHour() {
        Date currentTime = new Date();
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String dateString = formatter.format(currentTime);
        String hour;
        hour = dateString.substring(11, 13);
        return hour;
    }

    /**
     * 得到现在分钟
     *
     * @return
     */
    public static String getTime() {
        Date currentTime = new Date();
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String dateString = formatter.format(currentTime);
        String min;
        min = dateString.substring(14, 16);
        return min;
    }

    /**
     * 根据用户传入的时间表示格式，返回当前时间的格式 如果是yyyyMMdd，注意字母y不能大写。
     *
     * @param sformat yyyyMMddhhmmss
     * @return
     */
    public static String getUserDate(String sformat) {
        Date currentTime = new Date();
        SimpleDateFormat formatter = new SimpleDateFormat(sformat);
        String dateString = formatter.format(currentTime);
        return dateString;
    }

    /**
     * 二个小时时间间的差值,必须保证二个时间都是"HH:MM"的格式，返回字符型的分钟
     */
    public static String getTwoHour(String st1, String st2) {
        String[] kk = null;
        String[] jj = null;
        kk = st1.split(":");
        jj = st2.split(":");
        if (Integer.parseInt(kk[0]) < Integer.parseInt(jj[0]))
            return "0";
        else {
            double y = Double.parseDouble(kk[0]) + Double.parseDouble(kk[1]) / 60;
            double u = Double.parseDouble(jj[0]) + Double.parseDouble(jj[1]) / 60;
            if ((y - u) > 0)
                return y - u + "";
            else
                return "0";
        }
    }

    /**
     * 得到二个日期间的间隔天数
     */
    public static String getTwoDay(String sj1, String sj2) {
        long day = 0;
        try {
            java.util.Date date = formatter.parse(sj1);
            java.util.Date mydate = formatter.parse(sj2);
            day = (date.getTime() - mydate.getTime()) / (24 * 60 * 60 * 1000);
        } catch (Exception e) {
            return "";
        }
        return day + "";
    }

    /**
     * 时间前推或后推分钟,其中JJ表示分钟.
     */
    public static String getPreTime(String sj1, String jj) {
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String mydate1 = "";
        try {
            Date date1 = format.parse(sj1);
            long Time = (date1.getTime() / 1000) + Integer.parseInt(jj) * 60;
            date1.setTime(Time * 1000);
            mydate1 = format.format(date1);
        } catch (Exception e) {
        }
        return mydate1;
    }

    /**
     * 得到一个时间延后或前移几天的时间,nowdate(yyyy-mm-dd)为时间,delay为前移或后延的天数
     */
    public static String getNextDay(String nowdate, String delay) {
        try {
            String mdate = "";
            Date d = strToDate(nowdate);
            long myTime = (d.getTime() / 1000) + Integer.parseInt(delay) * 24 * 60 * 60;
            d.setTime(myTime * 1000);
            mdate = formatter.format(d);
            return mdate;
        } catch (Exception e) {
            return "";
        }
    }

    /**
     * 功能：<br/> 距离现在几天的时间是多少
     * 获得一个时间字符串，格式为：yyyy-MM-dd HH:mm:ss
     * day  如果为整数，表示未来时间
     * 如果为负数，表示过去时间
     *
     * @author Tony
     * @version 2016年11月29日 上午11:02:56 <br/>
     */
    public static String getFromNow(int day) {
        Date date = new Date();
        long dateTime = (date.getTime() / 1000) + day * 24 * 60 * 60;
        date.setTime(dateTime * 1000);
        return formatter2.format(date);
    }

    /**
     * 判断是否润年
     *
     * @param ddate
     * @return
     */
    public static boolean isLeapYear(String ddate) {

        /**
         * 详细设计： 1.被400整除是闰年，否则： 2.不能被4整除则不是闰年 3.能被4整除同时不能被100整除则是闰年
         * 3.能被4整除同时能被100整除则不是闰年
         */
        Date d = strToDate(ddate);
        GregorianCalendar gc = (GregorianCalendar) Calendar.getInstance();
        gc.setTime(d);
        int year = gc.get(Calendar.YEAR);
        if ((year % 400) == 0)
            return true;
        else if ((year % 4) == 0) {
            if ((year % 100) == 0)
                return false;
            else
                return true;
        } else
            return false;
    }

    /**
     * 返回美国时间格式 26 Apr 2006
     *
     * @param str
     * @return
     */
    public static String getEDate(String str) {
        ParsePosition pos = new ParsePosition(0);
        Date strtodate = formatter.parse(str, pos);
        String j = strtodate.toString();
        String[] k = j.split(" ");
        return k[2] + k[1].toUpperCase() + k[5].substring(2, 4);
    }

    /**
     * 获取一个月的最后一天
     *
     * @param dat
     * @return
     */
    public static String getEndDateOfMonth(String dat) {// yyyy-MM-dd
        String str = dat.substring(0, 8);
        String month = dat.substring(5, 7);
        int mon = Integer.parseInt(month);
        if (mon == 1 || mon == 3 || mon == 5 || mon == 7 || mon == 8 || mon == 10 || mon == 12) {
            str += "31";
        } else if (mon == 4 || mon == 6 || mon == 9 || mon == 11) {
            str += "30";
        } else {
            if (isLeapYear(dat)) {
                str += "29";
            } else {
                str += "28";
            }
        }
        return str;
    }
    
    /**
     * 获取一个月的第一天
     * @param dat
     * @return
     */
    public static String getStartDateOfMonth(String dat) {// yyyy-MM-dd
    	String str = dat.substring(0, 8);
    	return str +"01";
    }

    /**
     * 判断二个时间是否在同一个周
     *
     * @param date1
     * @param date2
     * @return
     */
    public static boolean isSameWeekDates(Date date1, Date date2) {
        Calendar cal1 = Calendar.getInstance();
        Calendar cal2 = Calendar.getInstance();
        cal1.setTime(date1);
        cal2.setTime(date2);
        int subYear = cal1.get(Calendar.YEAR) - cal2.get(Calendar.YEAR);
        if (0 == subYear) {
            if (cal1.get(Calendar.WEEK_OF_YEAR) == cal2.get(Calendar.WEEK_OF_YEAR))
                return true;
        } else if (1 == subYear && 11 == cal2.get(Calendar.MONTH)) {
            // 如果12月的最后一周横跨来年第一周的话则最后一周即算做来年的第一周
            if (cal1.get(Calendar.WEEK_OF_YEAR) == cal2.get(Calendar.WEEK_OF_YEAR))
                return true;
        } else if (-1 == subYear && 11 == cal1.get(Calendar.MONTH)) {
            if (cal1.get(Calendar.WEEK_OF_YEAR) == cal2.get(Calendar.WEEK_OF_YEAR))
                return true;
        }
        return false;
    }

    /**
     * 产生周序列,即得到当前时间所在的年度是第几周
     *
     * @return
     */
    public static String getSeqWeek() {
        Calendar c = Calendar.getInstance(Locale.CHINA);
        String week = Integer.toString(c.get(Calendar.WEEK_OF_YEAR));
        if (week.length() == 1)
            week = "0" + week;
        String year = Integer.toString(c.get(Calendar.YEAR));
        return year + week;
    }

    /**
     * 获得一个日期所在的周的星期几的日期，如要找出2002年2月3日所在周的星期一是几号
     *
     * @param sdate
     * @param num
     * @return
     */
    public static String getWeek(String sdate, String num) {
        // 再转换为时间
        Date dd = DateUtil.strToDate(sdate);
        Calendar c = Calendar.getInstance();
        c.setTime(dd);
        if (num.equals("1")) // 返回星期一所在的日期
            c.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);
        else if (num.equals("2")) // 返回星期二所在的日期
            c.set(Calendar.DAY_OF_WEEK, Calendar.TUESDAY);
        else if (num.equals("3")) // 返回星期三所在的日期
            c.set(Calendar.DAY_OF_WEEK, Calendar.WEDNESDAY);
        else if (num.equals("4")) // 返回星期四所在的日期
            c.set(Calendar.DAY_OF_WEEK, Calendar.THURSDAY);
        else if (num.equals("5")) // 返回星期五所在的日期
            c.set(Calendar.DAY_OF_WEEK, Calendar.FRIDAY);
        else if (num.equals("6")) // 返回星期六所在的日期
            c.set(Calendar.DAY_OF_WEEK, Calendar.SATURDAY);
        else if (num.equals("0")) // 返回星期日所在的日期
            c.set(Calendar.DAY_OF_WEEK, Calendar.SUNDAY);
        return new SimpleDateFormat("yyyy-MM-dd").format(c.getTime());
    }

    /**
     * 根据一个日期，返回是星期几的字符串
     *
     * @param sdate
     * @return
     */
    public static String getWeek(String sdate) {
        // 再转换为时间
        Date date = DateUtil.strToDate(sdate);
        Calendar c = Calendar.getInstance();
        c.setTime(date);
        // int hour=c.get(Calendar.DAY_OF_WEEK);
        // hour中存的就是星期几了，其范围 1~7
        // 1=星期日 7=星期六，其他类推
        return new SimpleDateFormat("EEEE").format(c.getTime());
    }

    public static String getWeekStr(String sdate) {
        String str = "";
        str = DateUtil.getWeek(sdate);
        if ("1".equals(str)) {
            str = "星期日";
        } else if ("2".equals(str)) {
            str = "星期一";
        } else if ("3".equals(str)) {
            str = "星期二";
        } else if ("4".equals(str)) {
            str = "星期三";
        } else if ("5".equals(str)) {
            str = "星期四";
        } else if ("6".equals(str)) {
            str = "星期五";
        } else if ("7".equals(str)) {
            str = "星期六";
        }
        return str;
    }

    /**
     * 两个时间之间的天数
     *
     * @param date1
     * @param date2
     * @return
     */
    public static long getDays(String date1, String date2) {
        if (date1 == null || date1.equals(""))
            return 0;
        if (date2 == null || date2.equals(""))
            return 0;
        // 转换为标准时间
        java.util.Date date = null;
        java.util.Date mydate = null;
        try {
            date = formatter.parse(date1);
            mydate = formatter.parse(date2);
        } catch (Exception e) {
        }
        long day = (date.getTime() - mydate.getTime()) / (24 * 60 * 60 * 1000);
        return day;
    }

    /**
     * 形成如下的日历 ， 根据传入的一个时间返回一个结构 星期日 星期一 星期二 星期三 星期四 星期五 星期六 下面是当月的各个时间
     * 此函数返回该日历第一行星期日所在的日期
     *
     * @param sdate
     * @return
     */
    public static String getNowMonth(String sdate) {
        // 取该时间所在月的一号
        sdate = sdate.substring(0, 8) + "01";

        // 得到这个月的1号是星期几
        Date date = DateUtil.strToDate(sdate);
        Calendar c = Calendar.getInstance();
        c.setTime(date);
        int u = c.get(Calendar.DAY_OF_WEEK);
        String newday = DateUtil.getNextDay(sdate, (1 - u) + "");
        return newday;
    }

    /**
     * 取得数据库主键 生成格式为yyyymmddhhmmss+k位随机数
     *
     * @param k 表示是取几位随机数，可以自己定
     */

    public static String getNo(int k) {

        return getUserDate("yyyyMMddhhmmss") + getRandom(k);
    }

    /**
     * 返回一个随机数
     *
     * @param i
     * @return
     */
    public static String getRandom(int i) {
        Random jjj = new Random();
        // int suiJiShu = jjj.nextInt(9);
        if (i == 0)
            return "";
        String jj = "";
        for (int k = 0; k < i; k++) {
            jj = jj + jjj.nextInt(9);
        }
        return jj;
    }
    
    public static boolean RightDate(String date) {

        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
        ;
        if (date == null)
            return false;
        if (date.length() > 10) {
            sdf = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
        } else {
            sdf = new SimpleDateFormat("yyyy-MM-dd");
        }
        try {
            sdf.parse(date);
        } catch (ParseException pe) {
            return false;
        }
        return true;
    }

    /***************************************************************************
     * //nd=1表示返回的值中包含年度 //yf=1表示返回的值中包含月份 //rq=1表示返回的值中包含日期 //format表示返回的格式 1
     * 以年月日中文返回 2 以横线-返回 // 3 以斜线/返回 4 以缩写不带其它符号形式返回 // 5 以点号.返回
     **************************************************************************/
    public static String getStringDateMonth(String sdate, String nd, String yf, String rq, String format) {
        Date currentTime = new Date();
        String dateString = formatter.format(currentTime);
        String s_nd = dateString.substring(0, 4); // 年份
        String s_yf = dateString.substring(5, 7); // 月份
        String s_rq = dateString.substring(8, 10); // 日期
        String sreturn = "";
        //roc.util.MyChar mc = new roc.util.MyChar();
        //if (sdate == null || sdate.equals("") || !mc.Isdate(sdate)) { // 处理空值情况
        if (sdate == null || sdate.equals("")) {
            if (nd.equals("1")) {
                sreturn = s_nd;
                // 处理间隔符
                if (format.equals("1"))
                    sreturn = sreturn + "年";
                else if (format.equals("2"))
                    sreturn = sreturn + "-";
                else if (format.equals("3"))
                    sreturn = sreturn + "/";
                else if (format.equals("5"))
                    sreturn = sreturn + ".";
            }
            // 处理月份
            if (yf.equals("1")) {
                sreturn = sreturn + s_yf;
                if (format.equals("1"))
                    sreturn = sreturn + "月";
                else if (format.equals("2"))
                    sreturn = sreturn + "-";
                else if (format.equals("3"))
                    sreturn = sreturn + "/";
                else if (format.equals("5"))
                    sreturn = sreturn + ".";
            }
            // 处理日期
            if (rq.equals("1")) {
                sreturn = sreturn + s_rq;
                if (format.equals("1"))
                    sreturn = sreturn + "日";
            }
        } else {
            // 不是空值，也是一个合法的日期值，则先将其转换为标准的时间格式
            sdate = getOKDate(sdate);
            s_nd = sdate.substring(0, 4); // 年份
            s_yf = sdate.substring(5, 7); // 月份
            s_rq = sdate.substring(8, 10); // 日期
            if (nd.equals("1")) {
                sreturn = s_nd;
                // 处理间隔符
                if (format.equals("1"))
                    sreturn = sreturn + "年";
                else if (format.equals("2"))
                    sreturn = sreturn + "-";
                else if (format.equals("3"))
                    sreturn = sreturn + "/";
                else if (format.equals("5"))
                    sreturn = sreturn + ".";
            }
            // 处理月份
            if (yf.equals("1")) {
                sreturn = sreturn + s_yf;
                if (format.equals("1"))
                    sreturn = sreturn + "月";
                else if (format.equals("2"))
                    sreturn = sreturn + "-";
                else if (format.equals("3"))
                    sreturn = sreturn + "/";
                else if (format.equals("5"))
                    sreturn = sreturn + ".";
            }
            // 处理日期
            if (rq.equals("1")) {
                sreturn = sreturn + s_rq;
                if (format.equals("1"))
                    sreturn = sreturn + "日";
            }
        }
        return sreturn;
    }

    public static String getNextMonthDay(String sdate, int m) {
        sdate = getOKDate(sdate);
        int year = Integer.parseInt(sdate.substring(0, 4));
        int month = Integer.parseInt(sdate.substring(5, 7));
        month = month + m;
        if (month < 0) {
            month = month + 12;
            year = year - 1;
        } else if (month > 12) {
            month = month - 12;
            year = year + 1;
        }
        String smonth = "";
        if (month < 10)
            smonth = "0" + month;
        else
            smonth = "" + month;
        return year + "-" + smonth + "-10";
    }

    /**
     * 功能：<br/>
     *
     * @author Tony
     * @version 2015-3-31 上午09:29:31 <br/>
     */
    public static String getOKDate(String sdate) {
        if (sdate == null || sdate.equals(""))
            return getStringDateShort();

//      if (!VeStr.Isdate(sdate)) {
//       sdate = getStringDateShort();
//      }
//      // 将“/”转换为“-”
//      sdate = VeStr.Replace(sdate, "/", "-");
        // 如果只有8位长度，则要进行转换
        if (sdate.length() == 8)
            sdate = sdate.substring(0, 4) + "-" + sdate.substring(4, 6) + "-" + sdate.substring(6, 8);
        ParsePosition pos = new ParsePosition(0);
        Date strtodate = formatter.parse(sdate, pos);
        String dateString = formatter.format(strtodate);
        return dateString;
    }

    /**
     * 获取当前时间的前一天时间
     *
     * @param cl
     * @return
     */
    private static String getBeforeDay(Calendar cl) {
        //使用roll方法进行向前回滚
        //cl.roll(Calendar.DATE, -1);
        //使用set方法直接进行设置
        // int day = cl.get(Calendar.DATE);
        cl.add(Calendar.DATE, -1);
        return formatter.format(cl.getTime());
    }

    /**
     * 获取当前时间的后一天时间
     *
     * @param cl
     * @return
     */
    private static String getAfterDay(Calendar cl) {
        //使用roll方法进行回滚到后一天的时间
        //cl.roll(Calendar.DATE, 1);
        //使用set方法直接设置时间值
        //int day = cl.get(Calendar.DATE);
        cl.add(Calendar.DATE, 1);
        return formatter.format(cl.getTime());
    }

    private static String getDateAMPM() {
        GregorianCalendar ca = new GregorianCalendar();
        //结果为“0”是上午     结果为“1”是下午
        int i = ca.get(GregorianCalendar.AM_PM);
        return i == 0 ? "AM" : "PM";
    }

    private static int compareToDate(String date1, String date2) {
        return date1.compareTo(date2);
    }

    private static int compareToDateString(String date1, String date2) {
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        int i = 0;
        try {
            long ldate1 = formatter.parse(date1).getTime();
            long ldate2 = formatter.parse(date2).getTime();
            if (ldate1 > ldate2) {
                i = 1;
            } else if (ldate1 == ldate2) {
                i = 0;
            } else {
                i = -1;
            }

        } catch (ParseException e) {
            e.printStackTrace();
        }
        return i;
    }

    public static String[] getFiveDate() {
        String[] dates = new String[2];
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(new Date());
        String five = " 05:00:00";

        if (getDateAMPM().equals("AM") && compareToDateString(getStringDate(), getStringDateShort() + five) == -1) {
            dates[0] = getBeforeDay(calendar) + five;
            dates[1] = getStringDateShort() + five;
        } else {
            dates[0] = getStringDateShort() + five;
            dates[1] = getAfterDay(calendar) + five;
        }

        return dates;
    }

    public static String getFiveDate2() {
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(new Date());
        String five = " 05:00:00";
        String reStr = "";
        if (getDateAMPM().equals("AM") && compareToDateString(getStringDate(), getStringDateShort() + five) == -1) {
            reStr = getBeforeDay(calendar);
        } else {
            reStr = getStringDateShort();
        }
        return reStr;
    }
    
    /**
     * 当前季度开始时间  yyyy-MM-dd
     * @return
     */
	public static String getCurrentQuarterStartTime() {
		Calendar c = Calendar.getInstance();
		int currentMonth = c.get(Calendar.MONTH) + 1;
		SimpleDateFormat shortSdf = new SimpleDateFormat("yyyy-MM-dd");
		String now = null;
		try {
			if (currentMonth >= 1 && currentMonth <= 3){
				c.set(Calendar.MONTH, 0);
			}else if (currentMonth >= 4 && currentMonth <= 6){
				c.set(Calendar.MONTH, 3);
			}else if (currentMonth >= 7 && currentMonth <= 9){
				c.set(Calendar.MONTH, 6);
			}else if (currentMonth >= 10 && currentMonth <= 12){
				c.set(Calendar.MONTH, 9);
			}
			c.set(Calendar.DATE, 1);
			
			now = shortSdf.format(c.getTime());
		} catch (Exception e) {
			e.printStackTrace();
		}
		return now;
	}

	/**
	 * 当前季度的结束时间。即:yyyy-MM-dd
	 *
	 * @return
	 */
	public static String getCurrentQuarterEndTime() {
		Calendar cal = Calendar.getInstance();
		try {
			cal.setTime(formatter.parse(getCurrentQuarterStartTime()));
			cal.add(Calendar.MONTH, 3);
			cal.add(Calendar.DATE, -1);
			return formatter.format(cal.getTime());
		} catch (ParseException e) {
			e.printStackTrace();
		}
		return null;
	}
	
	/**
	 * 获取当前年份
	 * @return
	 */
	public static String getNowYear(){
		Calendar date = Calendar.getInstance();
		String year = String.valueOf(date.get(Calendar.YEAR));
		return year;
	}
	
	
	/**
	 * 两个时间差 
	 * @param endDate
	 * @param nowDate
	 * @return
	 */
	public static String getDatePoor(Date endDate, Date nowDate) {
		long nd = 1000 * 24 * 60 * 60;
		long nh = 1000 * 60 * 60;
		long nm = 1000 * 60;
		// long ns = 1000;
		// 获得两个时间的毫秒时间差异
		long diff = endDate.getTime() - nowDate.getTime();
		// 计算差多少天
		long day = diff / nd;
		// 计算差多少小时
		long hour = diff % nd / nh;
		// 计算差多少分钟
		long min = diff % nd % nh / nm;
		// 计算差多少秒//输出结果
		// long sec = diff % nd % nh % nm / ns;
		return day + "天" + hour + "小时" + min + "分钟";
		}
	
	
	public static String getDatePoorStr(String endDateT, String startDateT) {
		Date endDate = strToDateLong(endDateT);
		Date nowDate = strToDateLong(startDateT); 
		//天
		long nd = 1000 * 24 * 60 * 60;
		long nh = 1000 * 60 * 60;
		//f分
		long nm = 1000 * 60;
		long ns = 1000;
		// 获得两个时间的毫秒时间差异
		long diff = endDate.getTime() - nowDate.getTime();
		// 计算差多少天
		long day = diff / nd;
		// 计算差多少小时
		long hour = diff % nd / nh;
		// 计算差多少分钟
		long min = diff % nd % nh / nm;
		// 计算差多少秒//输出结果
		long sec = diff % nd % nh % nm / ns;
		return day + "天" + hour + "小时" + min + "分钟" + sec + "秒";

		}
	    /**
	     * 获取当月yy-MM-dd
	     * @return
	     */
		public static List<String> getDaysByMonth(){
		    Calendar aCalendar = Calendar.getInstance(Locale.CHINA);
	        int yearParam = aCalendar.get(Calendar.YEAR);  
	        int monthParam = aCalendar.get(Calendar.MONTH)+1;  
		    List<String> list = new ArrayList<String>();
		    	aCalendar.set(yearParam, monthParam,1);
		    	int year = aCalendar.get(Calendar.YEAR);
		    	int month = aCalendar.get(Calendar.MONTH);
		    	int day = aCalendar.getActualMaximum(Calendar.DATE);
		    	   for (int i = 1; i <= day; i++) {
		    		  String aDate=null;
		    		  if(month<10&&i<10){
		    		  aDate = String.valueOf(year)+"-0"+month+"-0"+i;
		       }
		    		if(month<10&&i>=10){
		    		aDate = String.valueOf(year)+"-0"+month+"-"+i;
		    		}
		    		if(month>=10&&i<10){
		    		aDate = String.valueOf(year)+"-"+month+"-0"+i;
		    		}
		    		if(month>=10&&i>=10){
		    		aDate = String.valueOf(year)+"-"+month+"-"+i;
		    		}
		    	
		    		list.add(aDate);
		    		}
		    		return list;
	    }
		/**
		 * 获取月数
		 * @return
		 */
		public static List<String> getMonth(){
			List<String> list = new ArrayList<>();
			for (int i = 1; i <=12; i++) {
				if (i<10) {
					list.add("0"+i);
				}else {
					list.add(i+"");
				}
			}
			return list;
			
		}
		/**
		 * 获取百分比
		 * @param num
		 * @param total
		 * @param scale
		 * @return
		 */
		public static String accuracy(double num, double total, int scale){
			DecimalFormat df = (DecimalFormat)NumberFormat.getInstance();
			//设置精确几位小数
			df.setMaximumFractionDigits(scale);
			//模式(四舍五入)
			df.setRoundingMode(RoundingMode.HALF_UP);
			double accuracy_num = num / total * 100;
			return df.format(accuracy_num)+"%";
	}
		/**
		 * 增加年限后的日期
		 * @param seconds
		 * @param years
		 * @return
		 */
		public static String getYeargap(Long seconds , int years){
			//时间戳转换为LocalDate
	    	LocalDate localDate = Instant.ofEpochMilli(seconds).atZone(ZoneOffset.ofHours(8)).toLocalDate();
	    	System.out.println(localDate);
			LocalDate yearTime = localDate.plus(years, ChronoUnit.YEARS);
	        DateTimeFormatter fmt = DateTimeFormatter.ofPattern("yyyy-MM-dd");
			return yearTime.format(fmt);
	}
		/**
		 * 两个日期之间所有日期的集合
		 * @param startTime
		 * @param endTime
		 * @return
		 */
		  public static List<String> getDays1(String startTime, String endTime) {

	        // 返回的日期集合
	        List<String> days = new ArrayList<String>();

	        DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
	        try {
	            Date start = dateFormat.parse(startTime);
	            Date end = dateFormat.parse(endTime);

	            Calendar tempStart = Calendar.getInstance();
	            tempStart.setTime(start);

	            Calendar tempEnd = Calendar.getInstance();
	            tempEnd.setTime(end);
	            tempEnd.add(Calendar.DATE, +1);// 日期加1(包含结束)
	            while (tempStart.before(tempEnd)) {
	                days.add(dateFormat.format(tempStart.getTime()));
	                tempStart.add(Calendar.DAY_OF_YEAR, 1);
	            }

	        } catch (ParseException e) {
	            e.printStackTrace();
	        }

	        return days;
	    }
	}

